From aa6db0aa944ae06c66e604704b9a31d84b75f71b Mon Sep 17 00:00:00 2001
From: themancalledjakob <jakob@jrkb.land>
Date: Sun, 25 Jun 2023 12:38:05 +0200
Subject: [PATCH] add fade slider to enable/disable fading

---
 data/ofxMsdfgen/shaders/mix/ES3/shader.frag | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/data/ofxMsdfgen/shaders/mix/ES3/shader.frag b/data/ofxMsdfgen/shaders/mix/ES3/shader.frag
index 7580689..46a83d6 100644
--- a/data/ofxMsdfgen/shaders/mix/ES3/shader.frag
+++ b/data/ofxMsdfgen/shaders/mix/ES3/shader.frag
@@ -4,6 +4,7 @@ precision highp float;
 // these are our textures
 uniform sampler2D msdf;
 
+uniform float fade;
 uniform vec2 unitRange;
 uniform vec4 bgColor;
 
@@ -32,7 +33,7 @@ float screenPxDistance(vec3 msdf_rgb, vec2 uv) {
 }
 
 float near = 1.0;
-float far = 4600.0;
+float far = 4400.0 + 400.0;
 float width = 1920.0;
 float height = 1080.0;
 float linearizeDepth(float depth)
@@ -77,9 +78,10 @@ void main()
             ));
     // INFO: this needs to be adjusted if field of view is adjusted
     float d = smoothstep(0.2, 0.8, z + 0.2 * (screenPos.x + screenPos.y));
+    d = min(d, fade);
     outputColor = vec4(mix(fgColor.rgb, backgroundColor.rgb, d),1.0);
 
     //outputColor = vec4(opacity, 1.0-opacity, 0.0, 1.0);
-    //outputColor = vec4(1.0-msdf_rgb.rgb, 1.0);
+    //outputColor = vec4(1.0-msdf_rgb_a.rgb, 1.0);
     //outputColor = vec4(1.0,0.0,1.0,1.0);
 }